Warming Up: Integers, Sequences, and Experimental Mathematics
The oldest known record of a mathematical object is the fossilized Lebombo bone [more than 43,000 years old according to rigorous carbon dating (d’Errico et al. 1987)], displaying 29 tally marks. Just for fun: this means that the first integer ever recorded in human history happens to be a prime number! One could indeed say that the natural numbers 1, 2, 3, … have fascinated humanity from the dawn of time, thus becoming engrained in human consciousness (Greathouse; Dehaene 1999).